Circuit breathing for quitting e-cigarettes among youth

Is this trial a fit for you?

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This randomized crossover study compares three breathing conditions—circuit breathing, diaphragmatic breathing, and normal breathing—in 20 youth e-cigarette users aged 15 to 25. Each participant experiences all conditions with at least one week between sessions to measure acute effects on nicotine withdrawal, dependence, heart rate, blood pressure, PNIF, and FeNO. The trial is conducted at Chulalongkorn University in Bangkok and does not involve a traditional drug treatment. Researchers will analyze which breathing technique most favorably influences withdrawal and respiratory parameters in the short term.

Why it matters

Who can join: the full rules

Inclusion Criteria:

* Male or female aged 15-25 years.
* Regular e-cigarette use for at least six months and current e-cigarette use, defined as use on at least one day per week or at least 10 puffs per day during the past 30 days.
* Not regularly physically active, defined as exercising fewer than two times per week during the preceding six months.
* Able to understand instructions, communicate effectively, and cooperate with the research procedures.
* No history of cardiovascular disease or respiratory disease, such as asthma or chronic obstructive pulmonary disease.
* No uncontrolled hypertension. Participants with controlled hypertension must have resting blood pressure ≤140/90 mmHg.
* Able to move independently without assistance or assistive devices.
* Willing to participate and provide informed consent.
* For participants younger than 18 years, consent from a parent or legally authorized representative is required.

Exclusion Criteria:

* Development of an illness, injury, or other circumstance that prevents continued participation.
* Withdrawal of consent or unwillingness to continue participation.
* Current use of illicit drugs or other tobacco/nicotine products, including conventional cigarettes, shisha/hookah, roll-your-own tobacco, or other nicotine-containing products.

Where it's running

• Faculty of Sports Science, Chulalongkorn University
  Bangkok, Bangkok, Thailand Recruiting

Study contacts

• Study coordinator: Wannaporn Tongtako, Ph.D.
• Email: wannaporn.t@chula.ac.th
• Phone: 0879823131

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How to take part

1. Review the eligibility criteria above with your treating physician.
2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.